CN219025967U

CN219025967U - Clamping chuck

Info

Publication number: CN219025967U
Application number: CN202222571038.7U
Authority: CN
Inventors: 李启政; 李珂
Original assignee: Zhejiang Taiye Mechanical Equipment Co ltd
Current assignee: Zhejiang Taiye Mechanical Equipment Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-16
Anticipated expiration: 2032-09-27

Abstract

The utility model provides a clamping chuck, which comprises a chuck body and a plurality of clamping jaws, wherein a through hole is formed in the chuck body, a moving groove is further formed in the chuck body, the moving grooves are all in through connection with the through hole, the clamping jaws are in one-to-one correspondence with the moving grooves and are slidably mounted in the moving grooves, a blocking assembly is detachably arranged between the clamping jaws and comprises a connecting plate, a plurality of telescopic plates and a plurality of springs, a plurality of long strip-shaped connecting holes corresponding to the clamping jaws are formed in the connecting plate, mounting grooves which are communicated with the connecting holes are formed in the connecting holes, the springs are fixedly mounted at the bottoms of the mounting grooves, the telescopic plates are corresponding to the connecting holes and are slidably mounted in the connecting holes, and one ends of the telescopic plates extend into the mounting grooves and are fixedly connected with the springs at the bottoms of the mounting grooves. The utility model can effectively prevent scrap iron from entering the moving groove and the through hole, and is convenient for staff to clean the scrap iron.

Description

Clamping chuck

Technical Field

The utility model relates to the technical field of lathes, in particular to a clamping chuck.

Background

The chuck is a mechanical device used for clamping a workpiece on a lathe, and utilizes radial movement of movable claws uniformly distributed on the chuck body to clamp and position the workpiece, the chuck generally comprises three parts of the chuck body, the movable claws and a claw driving mechanism, a through hole is arranged at the center to pass through the workpiece or bar stock, a cylindrical or short conical structure is arranged at the back and is directly or through a flange plate connected with the end part of a main shaft of the lathe, the chuck is usually arranged on the lathe, a cylindrical grinder and an internal grinding machine for use, can also be matched with various indexing devices for use on a milling machine and a drilling machine,

according to the special three chuck that is convenient for clear up iron fillings of machining disclosed in patent number CN 213614218U, by chuck, movable jaw and jaw actuating mechanism constitute, have the advantage that makes things convenient for the jaw to remove and the fixed performance is excellent, but in this document the chuck still can not effectually prevent in the iron fillings get into the through-hole on the chuck, the relative position of jaw on the chuck is farther when fixed some great work pieces of processing, lead to the work piece can directly get into the chuck on the processing the iron fillings that get into in the removal inslot that is used for the jaw to remove, iron fillings in the removal inslot are difficult to the clearance, also can get into the jaw and with in the lateral wall of removal groove, and lead to the centre gripping precision decline of chuck.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a clamping chuck which is used for solving the technical problems that scrap iron enters a moving groove used for moving a claw on the chuck when a plurality of large workpieces are processed, so that the scrap iron is difficult to clean by a worker and the clamping precision of the chuck is reduced.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a centre gripping chuck, includes circular massive chuck body and a plurality of jack catch, coaxial through-hole has been seted up on the chuck body, still set up a plurality of removal grooves that use the through-hole as central circumference distribution on the chuck body, a plurality of remove the groove all with the through-hole link up and be connected, a plurality of jack catch and a plurality of remove groove one-to-one and slidable mounting are in the removal inslot that corresponds, a plurality of can dismantle between the jack catch and be equipped with the subassembly that blocks that prevents that iron fillings from getting into the through-hole, block the subassembly and include connecting plate, a plurality of expansion plate and a plurality of spring, set up on the connecting plate with a plurality of jack catch one-to-one's connecting hole, a plurality of the connecting hole that link up with the connecting hole has all been seted up on the lateral wall on the connecting plate radial direction of extension connecting plate, a plurality of spring one-to-one fixed mounting is in the tank bottom of a plurality of mounting grooves, a plurality of expansion plate and a plurality of connecting hole one-to-one and slidable mounting are in the connecting hole, and the one end of this expansion plate stretches into the mounting groove and with the spring fixed connection of mounting groove bottom the mounting groove, the other end and the jack catch and the other end is inconsistent.

Working principle:

the utility model relates to a clamping chuck which is mainly used for being arranged on a lathe and clamping a workpiece to be processed.

The working principle of the chuck body and the claw provided by the utility model is the same as that of a special three-jaw chuck which is used for machining and is convenient for cleaning scrap iron, and disclosed by patent number CN 213614218U.

When in use, when clamping a plurality of larger workpieces, firstly, the chuck body is operated, and the distance between a plurality of clamping jaws on the chuck body is increased until the clamping jaws are adjusted to clamp the workpieces to be processed.

Then place the connecting plate between the jack catch and detachable installs on the chuck body, make the expansion plate on the connecting plate and the jack catch one-to-one on the chuck body to make the expansion plate keep away from the one end of spring and the one end of jack catch inconsistent.

Then the workpiece to be processed is clamped between the clamping jaws, and the workpiece can be processed and chipped.

The beneficial effects are obtained:

first, be equipped with on the connecting plate with the expansion plate of jack catch one-to-one, can be in the effectual removal groove that is used for the jack catch to remove on the chuck body of during operation covers to prevent that iron fillings from getting into the removal inslot when the smear metal.

And second, the mounting groove is arranged in the moving hole on the connecting plate, so that the expansion plate can effectively move in the mounting groove of the moving hole, and the installation of a workpiece is more convenient.

And thirdly, a spring is arranged in the mounting groove, and two ends of the spring are fixedly connected with the bottom of the mounting groove and the expansion plate respectively, so that one end of the expansion plate can be abutted with one end of the clamping jaw at any time through the elasticity of the spring.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall structure of the chuck body and jaws;

FIG. 3 is a schematic top view of a connection plate;

fig. 4 is an enlarged cross-sectional structure schematic view of the connection plate.

In the above figures: 1. a chuck body; 2. a claw; 3. a through hole; 4. a connecting plate; 5. a telescoping plate; 6. a spring; 7. a connection hole; 8. a mounting groove; 9. a thread groove; 10. a threaded hole; 11. a fixing bolt; 12. a protrusion; 13. a notch; 14. a rubber block; 15. a wear-resistant layer; 16. a sleeve joint block; 17. and a moving groove.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Examples:

referring to fig. 1 to 4, the utility model is a clamping chuck, comprising a circular block-shaped chuck body 1 and a plurality of claws 2, wherein the chuck body 1 is provided with a coaxial through hole 3, the chuck body 1 is also provided with a plurality of moving grooves 17 which are circumferentially distributed by taking the through hole 3 as a center, the plurality of moving grooves 17 are all in through connection with the through hole 3, the plurality of claws 2 are in one-to-one correspondence with the plurality of moving grooves 17 and are slidably arranged in the corresponding moving grooves 17, a blocking component for preventing scrap iron from entering the through hole 3 is detachably arranged between the plurality of claws 2, the blocking component comprises a connecting plate 4, a plurality of expansion plates 5 and a plurality of springs 6, the connecting plate 4 is provided with a plurality of strip-shaped connecting holes 7 which are in one-to-one correspondence with a plurality of clamping claws 2, a plurality of mounting grooves 8 which are communicated with the connecting holes 7 are formed in the connecting holes 7 and extend to the side wall on the radial direction of the connecting plate 4, the mounting grooves 8 in the connecting holes 7 are parallel to each other and do not communicate with each other on the connecting plate 4, the springs 6 are fixedly arranged at the bottoms of the mounting grooves 8 in one-to-one correspondence, the telescopic plates 5 are in one-to-one correspondence with the connecting holes 7 and are slidably arranged in the connecting holes 7, one ends of the telescopic plates 5 extend into the mounting grooves 8 and are fixedly connected with the springs 6 at the bottoms of the mounting grooves 8, and the other ends of the telescopic plates are in conflict with the clamping claws 2.

The arrangement can effectively enable the expansion plate 5 to be always abutted against one end of the clamping jaw 2 through the elastic force of the spring 6, and effectively prevent scrap iron from entering the moving groove 17 and the through hole 3 during processing.

As shown in fig. 1, 2 and 3, the chuck body 1 is provided with a plurality of thread grooves 9, the connecting plate 4 is provided with a plurality of threaded holes 10 corresponding to the thread grooves 9 one by one, the threaded holes 10 are internally provided with fixing bolts 11, and the fixing bolts 11 are connected with the thread grooves 9 by penetrating through the threaded holes 10. This arrangement allows the connecting plate 4 to be effectively fixed to the chuck body 1 by the fixing bolts 11.

As shown in fig. 1 and 3, a plurality of claws 2 are provided with protrusions 12 towards the through holes 3, one ends of the telescopic plates 5, which are far away from the springs 6, are also provided with notches 13 corresponding to the protrusions 12, and rubber blocks 14 are also arranged on the notches 13. Be equipped with protruding 12 can effectually reduce the area of contact of jack catch 2 and work piece to make jack catch 2 to the pressure of work piece bigger, and then make the more stable quilt jack catch 2 centre gripping of work piece, still be equipped with rubber piece 14 on expansion plate 5, can effectually prevent chuck body 1 and produce rocking between expansion plate 5 and jack catch 2 when the during operation, and increase the frictional force between expansion plate 5 and the jack catch 2.

As shown in fig. 4, the outer side wall of the connecting plate 4 is further coated with a wear-resistant layer 15. The bottom of the connecting plate 4 is also provided with a sleeve joint block 16 which corresponds to the through hole 3 and has a hole enlarged at the top and a shrinkage hole at the bottom, the top of the sleeve joint block 16 is fixedly connected with the bottom of the connecting plate 4, and the sleeve joint block 16 is used for being inserted into the through hole 3. The socket block 16 can be inserted into the through hole 3 through the socket block 16 when the connecting plate 4 is installed, and the socket block 16 can be inserted into the through hole 3 more conveniently during installation because the socket block 16 is in the shape of top reaming and bottom shrinkage, and the connecting plate 4 and the chuck body 1 can be fixed conveniently.

Working principle:

when the chuck is used for clamping larger workpieces, firstly, the chuck body 1 is operated, the distance between a plurality of clamping jaws 2 on the chuck body 1 is increased until the chuck body is adjusted to clamp the workpieces to be machined, then the sleeve joint blocks 16 at the bottom of the connecting plate 4 are inserted into the through holes 3, the threaded holes 10 on the connecting block are adjusted to be in one-to-one correspondence with the threaded grooves 9 on the chuck body 1, then the connecting block is fixedly arranged on the chuck body 1 through the fixing bolts 11, at the moment, the telescopic plates 5 on the connecting plate 4 are also in one-to-one correspondence with the clamping jaws 2 in the moving grooves 17, then the workpieces to be machined are clamped between the clamping jaws 2, the chuck body 1 is operated, the clamping jaws 2 are moved along the moving grooves 17 towards the directions of the through holes 3, and one ends of the telescopic plates 5 far away from the springs 6 are abutted against the ends of the clamping jaws 2 while the workpieces are clamped. After the installation is finished, the lathe can be started to process chips on a workpiece, and the connecting plate 4 and the telescopic plate 5 always cover the through hole 3 and the movable groove 17 in the working process, so that scrap iron is difficult to enter the through hole 3 of the movable groove 17, and cleaning of workers is facilitated.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. The utility model provides a centre gripping chuck, includes circular massive chuck body (1) and a plurality of jack catch (2), coaxial through-hole (3) have been seted up on chuck body (1), still set up a plurality of removal groove (17) that use through-hole (3) as central circumference distribution on chuck body (1), a plurality of remove groove (17) all link up with through-hole (3), a plurality of jack catch (2) and a plurality of removal groove (17) one-to-one and slidable mounting are in removal groove (17) that correspond, its characterized in that: a plurality of can dismantle between jack catch (2) and be equipped with the subassembly that blocks that prevents iron fillings entering through-hole (3), block the subassembly and include connecting plate (4), a plurality of expansion plate (5) and a plurality of spring (6), connecting plate (4) detachably install on through-hole (3) of chuck body (1), connecting plate (4) are last to have seted up on one end with a plurality of jack catch (2) a plurality of rectangular connecting holes (7) of shape, a plurality of in connecting hole (7) and along all seted up mounting groove (8) that link up with connecting hole (7) on the lateral wall on connecting plate (4) radial direction, a plurality of spring (6) one-to-one fixed mounting is in the tank bottom of a plurality of mounting grooves (8), a plurality of expansion plate (5) and a plurality of connecting holes (7) one-to-one and slidable mounting in connecting hole (7), and the one end of this expansion plate (5) stretch into in mounting groove (8) and with spring (6) fixed connection of mounting groove (2) tank bottom of mounting groove (8) bottom, the other end is inconsistent with jack catch (2).

2. A clamping chuck according to claim 1, wherein: a plurality of thread grooves (9) are formed in the chuck body (1), a plurality of threaded holes (10) corresponding to the thread grooves (9) one by one are formed in the connecting plate (4), fixing bolts (11) are arranged in the threaded holes (10), and the fixing bolts (11) penetrate through the threaded holes (10) to be in threaded connection with the thread grooves (9).

3. A clamping chuck according to claim 2, wherein: one end of the clamping claws (2) clamped towards the through holes (3) is provided with protrusions (12), and one end of the telescopic plates (5) far away from the springs (6) is also provided with notches (13) corresponding to the protrusions (12).

4. A chuck according to claim 3, wherein: the notch (13) is also provided with a rubber block (14).

5. The clamping chuck as set forth in claim 4, wherein: the outer side wall of the connecting plate (4) is also coated with a wear-resistant layer (15).

6. A chuck as in claim 5, wherein: the bottom of the connecting plate (4) is also provided with a sleeving block (16) which corresponds to the through hole (3) and has a hole enlarged at the top and a hole reduced at the bottom, the top of the sleeving block (16) is fixedly connected with the bottom of the connecting plate (4), and the sleeving block (16) is used for being spliced in the through hole (3).